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If y=cos^(-1)(sqrtcosx),"then "dy/dx=...

If `y=cos^(-1)(sqrtcosx),"then "dy/dx=`

A

` (-sin x ) /(sqrt(cos x ( 1-cosx )) ) `

B

` (sin x ) /(sqrt(cos x ( 1-cosx )) ) `

C

` (-sin x ) /(2sqrt(cos x ( 1-cosx )) ) `

D

` (sin x ) /(2sqrt(cos x ( 1-cosx )) ) `

Text Solution

Verified by Experts

The correct Answer is:
C
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